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FAIR VALUE MEASUREMENTS
3 Months Ended
Apr. 01, 2022
Fair Value Disclosures [Abstract]  
FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS
The Company’s financial instruments not measured at fair value on a recurring basis were as follows:
April 1, 2022December 31, 2021
CarryingFair ValueCarryingFair Value
(in thousands)
ValueLevel 1Level 2Level 3ValueLevel 1Level 2Level 3
2022 Notes$37,518 $— $62,405 $— $36,824 $— $78,619 $— 
2024 Notes$113,324 $— $148,432 $— $98,941 $— $173,419 $— 
The fair value of the Company’s convertible notes is influenced by interest rates, the Company’s stock price and stock market volatility. The difference between the carrying value and the fair value is primarily due to the spread between the conversion price and the market value of the shares underlying the conversion as of each respective balance sheet date.